218580920

素因数分解:

$2^3\times 5^1\times {\mathrm{5464523}}^1$

素因数の和:5464534

約数の個数: 16

約数和(自身を含む): 491807160

約数和(自身を除く): 273226240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5464523, 10929046, 21858092, 27322615, 43716184, 54645230, 109290460, 218580920]

約数ペア:

[(1, 218580920), (2, 109290460), (4, 54645230), (5, 43716184), (8, 27322615), (10, 21858092), (20, 10929046), (40, 5464523)]